bones of the forearm and hand

Question 1

radius bone is on the ____ finger side of the forearm.

Answer 1

thumb

Question 2

ulna bone is on the ____ finger side of the forearm.

Answer 2

pinky

Question 3

head of the radius is at the ____ end of the bone.

Answer 3

proximal

Question 4

ulnar notch of the radius is at the ____ end of the radius.

Answer 4

distal

Question 5

fovea of the head of the radius articulates with ____ of the humerus.

Answer 5

capitulum

Question 6

lister’s tubercle is at the distal end and posterior side of the ____.

Answer 6

radius

Question 7

head of the ulna is at the ____ end of the bone.

Answer 7

distal

Question 8

radial notch of the ulna is at the ____ end of the ulna.

Answer 8

proximal

Question 9

olecranon process of the ulna fits into the ____ of the humerus and is on the ____ side of the forearm.

Answer 9

olecranon fossa

posterior

Question 10

supinator muscle attaches to the ____ of the ulna.

Answer 10

supinator crest

Question 11

trochlear notch of the ulna fits into the ____ of the humerus and looks like the letter ____.

Answer 11

trochlea

“U”

Question 12

styloid process of the radius is on the ____ side of the bone.

Answer 12

lateral

Question 13

styloid process of the ulna is on the ____ side of the bone.

Answer 13

medial

Question 14

proximal + distal radioulnar joint

Answer 14

where radius + ulna articulate with each other near elbow (proximal) + near wrist (distal)

Question 15

wrist joint

Answer 15

radiocarpal joint – where radius articulates w/ carpal bones (ulna does NOT articulate with bones of hand)

Question 16

joints of the hand

Answer 16

from proximal to distal:

• midcarpal joints (aka intercarpal joints) (gliding joints b/w carpals)
• intermetacarpal joints (b/w base of metacarpals)
• carpometacarpal joints (b/w carpals + metacarpals)
• metacarpophalangeal joints (mcp) (aka “knuckles” – b/w metacarpals + phalanges)
• proximal interphalangeal joints (pip)
• distal interphalangeal joints (dip)

Question 17

3 groups of bones in wrist + hand

Answer 17

• carpals (8)
• metacarpals (5) (“palm”)
• phalanges (14) (“fingers”)

Question 18

8 carpals

Answer 18

SLTP TTCH:

• scaphoid
• lunate
• triquetrum
• pisiform
• trapezium (by the thUMb)
• trapezoid
• capitate
• hamate

Question 19

carpal that is most easily fractured when you fall on wrist

Answer 19

scaphoid

Question 20

3 parts of a metacarpal or phalanx

Answer 20

• base (proximal end)
• shaft (long midsection)
• head (distal end)

Question 21

metacarpals

Answer 21

1st (lateral or thumb side of palm)
2nd 
3rd
4th
5th (medial or pinky side of palm)

Question 22

of bones per finger

Answer 22

3 phalanges per finger EXCEPT thumb, which has only 2 phalanges (no middle phalanx)